If you were to name the three most important tasks of a database administrator, what would they be? When it comes to LAN upkeep, how can we tell what methods would provide the best results?

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Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.